C#窗體程序，怎麽做等待處理用的層和進度條

private void Form1_Load(object sender, EventArgs e)

{

Thread thread = new Thread(threadFrom);//創建新線程

thread.Start();

/***開始加載任務**/

/***結束時銷毀線程***/

thread .Abort();

}

public void threadFrom()

{

MethodInvoker MethInvo = new MethodInvoker(ShowForm2);

BeginInvoke(MethInvo);

}

public void ShowForm()

{

Form2 f2 = new Form2();

f2.Show();

}